a cell produces acids during its normal activities, which are released into the external environment (such as a broth where the cell is located). However, the pH of the cell's external environment...

Extracted text: a cell produces acids during its normal activities, which are released into the external environment (such as a broth where the cell is located). However, the pH of the cell's external environment stays the same. This is possible because the environment has: O water O enzymes O bases O buffers salts